Reviewed By Paul C (Williamstown, NJ) Reviewed for a 2010 Ford Expedition —12/29/2014 12:15 PM
I'm using the 87 tune. It has a little more power and shifts better. Gas mileage is around the same or a little bit worse. It was pretty easy to install.
Reviewed By Casey M (Midland, TX) Reviewed for a 2001 Ford Expedition —9/4/2014 11:26 PM
It installed really easy don't notice a fuel increase because I can't seem to keep my foot out of pedal. There's a noticeable increase in horse power. Works great with the underdrive pulley kit,bbk throttle body, headers, Flowmaster exhaust, k&n cold air intake.